TransducersGordon Shering

By Gordon Shering

Introduction What is a transducer.Different types of transducers.Examples of commercial transducers.Using transducers on control systems.

By Gordon Shering

What is a Transducer?A device for turning one form of energy into another form of energy.InputOutputTransducer

By Gordon Shering

What is a Transducer?The input can be length, force, pressure, light, tempature etc.The output can be anything but most typically an electrical (analogue) signal.The analoge siganal may be converted into a digital signal with an ADC for computer systemsTransducer

By Gordon Shering

TransducersThe input can be length, force, pressure, light, tempature etc.The output can be anything but most typically an electrical (analogue) signal.The analoge siganal may be converted into a digital signal with an ADC for computer systems

By Gordon Shering

Position TransducersA Potentiometer may be used to measure position or movement.Electrical contacts age and can become unreliable.

By Gordon Shering

Liquid Level TransducersA Potentiometer used with a float to measure liquid level.Is this used in a car to measure petrol?.

By Gordon Shering

Pressure TransducersA Potentiometer used with bellows or a diaphragm to measure presure.

By Gordon Shering

Pressure TransducersOther ways to measure pressure.

By Gordon Shering

Position Transducers (Magnetic)Using magnetic coupling has the advantage that there are no rubbing contacts.

By Gordon Shering

Position Transducers (Capacitive)Using capacitive coupling can also be used and also has the advantage that there are no rubbing contacts.

By Gordon Shering

Position Transducers (Optical)Optics can be used to give a digital output directly. In this case rotational position is being measured.

By Gordon Shering

Position Transducers (Optical)What is the name for the cyclic code on the right.?Why is the wheel on the write normally used instead of the wheel on the left.?

By Gordon Shering

Force Transducers (Strain gauge)A strain gauge can be used to measure force.This could be used as a weighing machine.

By Gordon Shering

Force Transducers (Strain gauge)Real commercial strain gages are designed to give maximum sensitivity.

By Gordon Shering

Temperature TransducersA thermo couple uses two different metals that generate a voltage when they are heated.

By Gordon Shering